Depending on the processed material from each drill must be properly sharpened. To verify the correct angle will help a specially prepared square plate of copper or aluminium with a thickness of 1 mm.
To become operational protractor enough to cut it cut, as shown in the picture: a large cutout at an angle of 120 degrees, the other half is 60 degrees and the surviving corner of a square is 90.
Recommend to read
DUTCH-STYLE POTATOES
The experience of potato growers shows: Dutch technology for growing root crops is the most effective, with minimal labor costs. The rows are clean and even, and the harvest is excellent....
HOLOCAMERA — ANY
Because of the deterioration of the old Velocimetry often have to fix. The new find does not always succeed there, but another size of industry and trade not able to keep up with...
